diff --git a/cli/watch.py b/cli/watch.py
index 4a1d668..e3c8b03 100644
--- a/cli/watch.py
+++ b/cli/watch.py
@@ -7,7 +7,7 @@ kin ps: one-shot list of all running pipelines with PID and current step.
 
 import json
 import time
-from datetime import datetime
+from datetime import datetime, timezone
 
 from core import models
 
@@ -22,7 +22,7 @@ def _format_elapsed(dt_iso: str) -> str:
         # SQLite stores "YYYY-MM-DD HH:MM:SS"; fromisoformat requires 'T' in Python < 3.11
         normalized = dt_iso.replace(' ', 'T') if ' ' in dt_iso else dt_iso
         started = datetime.fromisoformat(normalized)
-        total_secs = int((datetime.utcnow() - started).total_seconds())
+        total_secs = int((datetime.now(timezone.utc).replace(tzinfo=None) - started).total_seconds())
         if total_secs < 0:
             total_secs = 0
         hours = total_secs // 3600